A SUSSEX ROCK-GARDEN. 
HI 
of Rubus arcticus, which spreads, and flowers freely here, and by 
this same corrie is a fine mass of Sempervivum arachnoideum, the 
pretty pink flowers forming a pleasing contrast to the white cottony 
foliage. 
Pursuing the main path, and leaving the large masses of rock, 
previously alluded to, on our left, we pass to an irregular-shaped pool 
on the right in the centre of the rock-garden (fig. 46) . In the fore- 
ground of this picture is a fine clump of the Melancholy Thistle 
(Carduus heterophyllus) , brought from Killin, in Scotland. In the little 
marsh round the pool are such plants as Grass of Parnassus (Parnassia 
palustris), Hypericum elodes, Soldanella, and several interesting rushes 
and sedges, including Carex Buxbaumii from Lough Neagh in Ireland, 
and Carex aquatilis from Loch Tummel in Perthshire. A rock by the 
path to the right of the picture is covered by a clump of Polygonum 
vaccinijolium, which is a plant that can be highly recommended for 
decorating prominent rocks with its bright pink flowers, which last 
throughout the autumn, and near by is a group of the bright yellow 
Ranunculus montanus, sl compact and very attractive species. 
A few paces further along the path, and looking back, one sees 
the bank on the opposite side of the path to the pool we have just 
passed, on which Anchusa my osotidi flora, like a giant Forget-me-not, 
and Lavatera Olbia and many other plants grow well. 
Below the Lavatera are steps leading to the upper path of the rock- 
garden, where, among other things, is a fine clump of our beautiful 
native Campanula patula, found on a few sandy commons in the 
South of England. It is an annual of great beauty, and sows itself 
freely wherever introduced, if the soil be sufficiently light to suit it. 
Passing the rock with the Lavatera on our left, and another side 
entrance on the right, we see in the distance the highest peaks of the 
rock-garden. To the left of the steps is a plant of Erica ciliaris alba, 
whilst on a sunny rock above is Othonnopsis cheirifolia, a plant admir- 
ably adapted to covering hot, dry, exposed rocks. 
On the right of the path, a little further along, is a clump of Primula 
' Mountain Ruby/ whilst on the left is a clump of Helleborus corsicus. 
This plant flowers from January onwards during the spring, and is 
a species well worth growing. 
On the next shoulder to the right is a fine clump of Saxifraga 
lingulata superba. 
Leaving the Saxifraga on the right, the main path passes into the 
ravine (fig. 47). This passage is cut through the solid rock. Above 
the rock is a bed of very soft sandstone, which was soon taken 
possession of by a large colony of sand-martins, which have nested 
there every year since. The steps on the left lead to the moraine, 
the sheet of white flowers being a rock covered with Helichrysum 
bellidioides, while to the left of this, and just outside the picture, is 
a fine plant of Aethionema iberideum. Ascending the steps, we reach 
the bottom of the moraine garden, the structure of which I will 
endeavour to explain to you ; one may see from here the hole through 
